"South Park" fans might be tempted to associate its creators with the cartoonish, crude universe their pre-teen characters reside in.
Trey Parker and Matt Stone are nothing of the sort, however. They're responsible for creating one of the most successful and lucrative franchises in TV history.
They've written the show and effectively voiced every character in the "South Park" universe for 26 seasons. They've written a hugely popular, filthy Broadway musical in the form of "The Book of Mormon." They also own a restaurant in Colorado and may even launch a weed business.
Here's how they built a billion-dollar empire – and how they've spent their cash.